Crushing-mill.



G. G. MAYER, JR.

GRUSHING MILL. APPLICATION FILED H33. 4, 1911.

Patented Sept. 8, 1914.

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C. G- MAYER, JR.

ORUSHING MILL.

APPLICATION FILED FEB. 4, 1911.

1 1 1 0,2 l 8. V Patented Sept. 8, 1914.

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THE NORRIS PETERh 60., PHOTO-LITHOH WASHINGTUN. D. C

V i, UNITED STATES. rArENroF c j CHARLES e. MAYER, m, or DURANGO, coLoitAno.

.cnUsHme-MILIL.

To all whom it may concern:

vBe it known that I, GHARLns G. MAYER, Jr.,;a citizen of the United States, residing at Durango, in the county of La Plata and Stateof Colorado, have invented new and useful Improvements in Crushing-Mills, of which the following is a specification.

The invention relates to crushers, and more particularly to the class of crushing mills for foods or other material. I

j The primary object of-the inventionis the provision of a mill of this character in which material delivered thereto may be disintegrated into fine or coarse particles, as the occasion may require. i I Another object of the invention is the pro,' vision of a mill in which the crushing rollers thereof are arranged in superposed pairs, one roller of each pair being adjustable toward and away from the-other of the pair, whereby the materiahwhen delivered thereto, may be disintegrated" or crushed into fine or coarse particles to suit the requirement thereof. f

A further object ofthe invention is the provision of' a'mill in which. the hopper defleeting walls thereof may be adjusted to increase or decrease the delivery opening for admitting the material contained within the hopper to the crushing rollers, thus avoiding the breaking of the material before the same has been acted upon by the" said crushing rollers, one roller of each pair being adjustable, wherebythe pairs of rollers may be independently adjusted for the disintegration of material to the required degree.

A still further object of the invention is the provision of a mill of this character'in which mechanism is arranged for the driv ing of one roller of each pair in unison, whereby the disintegration of material will be carried on successively by the continued operation of the machine.

A still further object of the invention is the provision of a mill of this character which is simple in construction, reliable and efficient in operation, durable, and inexpensive in manufacture.

iVith these and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto ap pended.

Specification of Letters Patent, Patented 8, 1914,

" Application filed February 4, 1911. SeriaI No. 6116,5569

In the"drawingsT'Figure 1 is side elevation of a'inill constructed in accordance with the invention. Fig. 2 is a verticallongitudinal sectional view thereof. Fig.3 is a vertical transverse sectional view, Fig'iis a fragmentary sidefelevation,showingthe being. extended to provide supporting legs orothe r suitable foundation.

1 2, 'whereby'th e'mill may. rest upon a'table the upper end of the body of the mill s arranged a hopper, comprising down converging; guide grooves 141 'for'nied in the end walls 11 of the body, the sidewalls at theirf'to pedgeslbeing beveled, as at 15,to permitthe free movement of the slides 13,

so that the latter may be adjusted whereby the space between the. lower bottom edges maybe ncreased: or" decreased, this space being; provlded' to form a delivery opening wardly converging adjustable slides the same be ng engaged in opposed downwardly from, the liopper to the crushing rollers, as

will be hereinafter more fully described. Below theh'o-pp'er andfsupported'by the end walls 11 of the bodyof the mill are superposed pairs of crushing rollers 16 and 17, the "rollers-l6 being provided with'corrugations longitudinally disposed therein to form crushing ribs 18, while the rollers 17 are provlded with roughened surfaces 19, the rollers 16 being adapted to disintegrate material into coarse particles as the same is delivered from the hopper to and between the said rollers, while the rollers 17 when in close relation to each other, are adapted to disintegrate the said material into fine particles. The pairs of rollersare provided with ournal ends 20which have their bearings in the end walls 11 of the body of the mill, the journal ends 20 of one roller of each pair being slidably fitted in horizontally disposed elongated guide slots 21 formed in the end walls 11, whereby the roller may be adjusted toward and away from the other roller of the pair, thus increasing or decreasing the space between the same and the journal ends 20. These adj ustable rollers are engaged in suitable openings formed in adjustable plates '22, the latter being slidably fitted in suitable guide ways 23 formed exteriorly on the end walls 11 of the body of the mill. Inclosing the said adjustable plates 22 are suitable housings 24 including removable face plates 25, the housings being suitably secured to the end walls ll of the body of the said mill. Connected with the adjustable plates 22 are locking members 26, the same being mounted upon the plates 22 by means of hinges 27 and are provided with a plurality of notches 28, the members 26 being projected through suitable slots 29 formed inthe ends of the housings 24, andin anyone of the notches in each member 26 is adapted to engage with the slotted wall of the inclosures 24, thereby locking the adjustable plates 22 against accidental movementpthus locking the roller in its adjusted position with respectto'the other roller of the pair. Suitably secured to the end of one roller of eachpair is a sprocket wheel 30, over which is trained a sprocket chain 31, whereby motion from one roller will be impartedto the other. The sprocket wheel 30 fixed to the roller'16 of the uppermost pair is ofconsiderably increased size with respect to the sprocket wheel 30 on the roller l7,'thus the roller 17 will be driven at a higher rate ofspeed than the roller 16, but both of said rollers will be rotated in unison. Suitably fixed to the other journal 20 on the roller 17 carrying the sprocket Wheel 30 is a fly wheel32, while at the end of the journal carrying said sprocket wheel of thisroller is fixed a belt wheel 33, over which is adapted to be trained a belt operated through the mediumof suitable motor power for the driving of the mill. However, in lieu of the belt wheel 33, a hand crank may be attached to the journal ers journaled in the body, blocks slidable on the ends of the body and adapted to receive the journal ends of one of the pair of said rollers, means for adjusting the said single roller and comprising combined lock and operating arms directly pivoted at one end of said blocks and having their opposite ends projecting through said vertical slots of the front wall of the body whereby to move and regulate the adjustment of said blocks, said arms being provided with 'a plurality of notches adapted for interchangeable engagement with the lower edge of the verticalslot, and removable plates coveringthe saidblocks and forming a housing therefor as described.

2. A mill of the class described, comprising a body having front, rear and end walls, said front walls having vertically disposed slots,"guideways formed on the exterior of the said end walls, a pair of rollers arranged within the body, the journaled ends of one of said rollers being mounted in elongated slots in the said end walls, blocks slidable in said guideways and provided with openings in registry with said elongated slots and adapted to receive the journal ends of the said single roller and means connected with the blocks and movable through said vertical slots of the casing for adjusting said rollers as described.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES Gr. MAYER, JR.

Witnesses: I

CHARLES E. STILWELL, OSCAR E. MAYER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

I Washington, D. G. 

